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2 Product Description
2.1 General description
The Bell & Gossett Glycol Make-up Units (GMU) are designed to feed and pressurize closed
hydronic heating or cooling systems. The engineered packages are designed to make sure
critical minimum pressure levels are maintained and comes with everything required for easy
installation. The automated system operates as needed to add water or water-glycol solution
to a closed loop heating, chilled water, snowmelt, or radiant heat systems.
WARNING:
This product can expose you to chemicals including Lead, which is known to the State of
California to cause cancer and birth defects or other reproductive harm. For more
information go to: www.P65Warnings.ca.gov.
2.2 Specifications
Maximum flow
Maximum liquid temperature
Maximum ambient temperature
Minimum and Maximum psi
Cut in
Cut out
Cut in/Cut out minimum differential
Power
Pump
strainer kit
Pressure reducing valve
Air vent valve
Output port
Manual refill port
Drain valve
Digital pressure switch
Accumulator tank
Float switch
Storage tank
Storage tank lid
Optional
GF60 INSTRUCTION MANUAL
5 gpm pump
Fittings kit
Inline strainer, 3/8" FNPT x 3/8" FNPT,
stainless steel, 40 mesh
2 Product Description
5 gpm
122°F/50°C
140°F/60°C
7½ psi/70 psi
10–45 psi
20–70 psi
7 ½ psi
Standard 115 VAC outlet
Glass filled nylon
Polypropylene
Polypropylene + Polysulfone
Brass
Brass
½" MNPT
2"
1" FNPT
Pressure setting digital display, 115 V
Nylon (1.06 quarts/1 liter)
PVC
60 gallon/227 liter HDPE
HDPE
Fill valve available.
5
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